Water-purifying apparatus.



n. 9, 5, 2 lv... u I.. d e t, n t a DI D. N A .l- E L A .L L 7 31 9 2 6 0. N

WATER PUBIFYIHG APPARATUS.

. (Anuncian med nu s, 1899.)

' (No Nudel.)

J. vnu E rus imma PETERS coA mmouhvlcr.A wAsn-uucrou. v. c.

" UNITED STATES of removable screw-.caps a and b, as shown on B. This may most conveniently be provided `ratus for separating impurities from water PATinvTk OFFICE..

EDWIN A. LELAND, or GREAT' BARE.inettoE," MASSACHUSETTS, AssreNoE rro THE LELAND FILTER COMPANY, or SAME PLAGE.. f y

Application tiled February 8. 1899.

T0 @ZZ whom it mia/y concern.-

' Beit known that I, EDWIN A..LELAND, a citizen of the United States, residing at Great Barrington, in the county of Berkshire and State of'Massachusetts, have invented certain new and useful Improvements in Water-PurifyingApparatus; and I do hereby declare that the following is a full, clear,"and` exact de# scription of the same, reference being had to the accompanying drawings, making a part of this specification,- in which Figure l is a longitudinal sectional view of an apparatus made according to my invention. Fig. 2 is a side view of one part of said apparatus. Fig. 3 is a transverse sectional view taken on the line a: a: of Fig'. l.

The object of this invention is' to provide a strong, simple,v eicient, and durable appaandvother liquids and one which maybe conveniently taken apart for examination or repairs whenever desired or necessary. It comprises certain new and useful combinations of parts hereinafter fully described and particularized. l

A is an external shell,- preferably of cylindric shape. The ends o f this shell are formed Fig. l. That end of the shell at which the liquid tobe purified 'is admitted-should be provided with a union joint or coupling c,.by which the apparatus may be detachably connected with any suitable inlet or supply pipe by means of a double-ended screw-section C; one end of which screws into the cap a and the other into the end of the inlet-pipe Band which is so 'proportioned that it may on occasion be turned out of and away from the cap a to separate the apparatus from the su pply-pipe, which done the apparatus may itself be unscrewed from the outlet-pipe D,to which the opposite end cap of the shell is screwed, as shown in Fig. l.

Within the shell is placed a foraminated NGAPPARATUS.

re/tent No. 629,377, dated July 25,1899,

o sentano. 794,893. (naman.)

F rest against a'dsl"` H5 which has ltwo concentric flanges ct b', one contiguous to the end of the partition E', the other to that of the partition F. The said ends are brazed, soldered, or otherwise united tothe two flanges a b', and thereby hold both partitions in place. The periphery of the disk His interposed between the end of the'shell A and the adjacent screw-cap caso that thedisk,with the attached partitions, is firmly held in place. When desireda washer c may be placed behind the disk H and compressed with it in orderto the moresecurely close the joint'.v The upper ends of` the foraminated partitions are closed, as shown ate and fin Figi. The space or chamber I within the .inner partition E communi- Icates with the inlet or 4supply pipe B. The interior of the shell A at its opposite end communicates withy the outlet-pipe D'. The an-r nular space G between the two partitions is filled. with sand, gravel;V or any other suitable filtering materiah Said material may be of 'a character to secure'merely the separation of mechanical impurities,' or it may, if desired, consist of bone-black or other substance capable of chemicallyV aftecting'the liquid passed through itto' neutralize, separate, or destroy such dissolved impurities as would escape the more straining action of a merely mechanically-operating filter. The foraminated partitions may be of any suitable material but in practice wire-cloth or wire-gauze of mesh corresponding to the character of the filtering material and to that of the work desired is very much to be preferred.` AroundV the outside of the outermost foraminated partitionV is placed a strengthening'- frame L, which is most conveniently and economically provided by a spiral wire securely wound around the said partition, as more fully shown in Fig. 2. The purpose of this frame is to resist pressure from within-and to prevent the radial expansion or rupture of the foraminated partitions when the liquid to be purified is urged into and through the apparatus under great or inordinate pressure. v

Vlathe operation of the apparatus the wa ter orfother liquid to be purified enters lthe chamber I from thev inlet-pipe B and, filling said chamber, passes lirst through the interstices of the inner foraminatedpartition F,

IOO

thence through the filtering or purifying material in the chamber G, and thence through the interstices of the outer forarninated partition E into the annular space between the latter and the shell A, and thence to the outlet D, the liquid being iilteredor purified duringits passage through the purifying material, asexplained. It will be observed that as the liquid passes through said material it meets with less and less resistance as it spreads from the narrow confines by the inner foraminated partition to the broader area of the outer partition through the purifying material, although the latter be of the same character and density throughout, and is distributed through and in contact with a continuously-increasing proportionate quantity of the purifyingr material.` rihe end f of the iiltering-chamber between the foraininated ,partition being closed against passage of the liquid, as hereinbefore set forth, the liquid is caused to expand radially and is directed through the foraminated' partitions and through the mass of the purifying mate rial, whereas if the said end of said chamber were open or foraminated the in flowing eurrent of liquid being projected along the straight axis of the chamber I would be driven with a too great velocity to and through the end` of the said chamber, thereby escaping the mass of the purifying material and being itself but imperfeetly purified in passing through the apparatus.

What I claim as my invention isl. The combination with an external shell having inlet and outlet passages, a foraminated partition placed within said shell and having a space between itself andthe shell, a foraminated partition of smaller diameter placed Within the outer partition and with a space between itself and the said outer pai tition for the reception of a purifying material, of a disk having flanges to which adjacent ends of the two partitions are secured, and a screw-cap annexed to clamp the periphery of the disk between itself and the end of the shell to hold the partitions in position within the shell, substantially as herein set forth. 1

2. The combination with an external shell having inlet and outlet passages, a foraminat-ed partition placed withintheshell,closed at its end nearest the outlet by the shell and providing a space between itself and said shell, a foraminated partition of smaller diameter placed within the outer partition and providing a space between itself and the outer partition for the reception of a purifying material, of a disk having flanges to which the ends of the two vpartitions nearest the inlet of the shell are secured, a screw-cap arranged to clamp the periphery of the disk between itself and the end of the shell to relieve the partitions in place, and a spiral wire Wound around the outer partition to resist the radial pressure of a liquid directed through the said partitions, substantially as herein set forth.

` EDWIN A. LELAND.

y 4Witnesses:

ARTHUR F. ROUSSEL, AMAZIAH WHITNEY.` 

